*{
	/* 消除所有元素内外边距 */
	margin:0px;
	padding:0px;
}
#a img {
    display: block;
    margin: 0 auto;
}
#c{
	text-align: center;
}
#b img{
	display: block;
	margin: 0 auto;

}
#e{
	text-align:right;
}
#d{
		display: block;
		background-color: blue;
		height: 300px;
		width: auto;
		text-align: center;
		color: aliceblue;
	}
	
#g{
		text-align: center;
	}
	
	
	#d a{
		text-decoration: none;
		color: darkorange;
	}
	#d ul{
		list-style-type:none;
		margin:1.25rem;
		padding:1.25rem;
	}
	#d li{
	display:inline;
	}